Love, pain, joy, fear, desire: the full spectrum of emotion resides in facial expression. We grasp this almost intuitively. However, we still lack a quantifiable understanding of the nuanced ...

Facial expressions play a fundamental role in social communication. While it is well established that others’ expressions influence our behavior—such as approaching a smiling person or avoiding an ...

When a baby smiles at you, it's almost impossible not to smile back. This spontaneous reaction to a facial expression is part of the back-and-forth that allows us to understand each other's emotions ...

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When I started horse riding lessons at the age of eight, I was told that if a horse had its ears forward that was a good sign, and if horse had its ears back it wasn’t happy. Those riding lessons ...